(under subclass 13) Processes directed to indirectly heating the carbonaceous charge, at least in part, with heat from a product of the thermolytic distillation operation.
SEE OR SEARCH CLASS
196, Mineral Oils: Apparatus,
134, for a mineral oil vaporizer having means for preheating the incoming oil by the heat of the vapors or residue.
203, Distillation: Processes, Separatory,
22+, and 25+ for a process of distilling a liquid in which the heat recovered by indirect heat exchange is used to heat the incoming feed or the distillation zone.
